package com.cx.config;

import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * @auther: Centaury
 * @Date:2023/3/20 - 03 - 20 - 22:16
 */
// 拦截器 return true放行 ,false不放行
public class LoginHandlerInterceptor implements HandlerInterceptor {

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        Object loginUser = request.getSession().getAttribute("loginUser");
        // 如果用户没有登录
        if(loginUser==null){
            request.setAttribute("msg","没有权限 ,请先登录 !");
            request.getRequestDispatcher("/index.html").forward(request,response);
            return false;
        }else{
            return true;
        }
    }
}
